Light from a laser strikes a diffraction grating that has 5500 lines per centimeter. the central and first-order maxima are separated by 0.455 m on a wall, 1.62 m from the grating, calculate the wavelength of the laser light.

What happens to atoms and chemical bonds during a reaction?

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same